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1.6.2 How to get mod compatability?


Nieue

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Hello, I want to be able to make my mod so that IF for example buildcraft/ic2 is installed alongside my mod that new items and recipes show up in my mod.

For example, if my mod were to add loads of pickaxes but I didn't add tin into the mod, if I also installed ic2 there would be a new item called a tin pickaxe and a recipe for it.

 

How would I go about doing this?

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Well, if you are making the items usable by these other mods, via fuel or pipe connections or EU users or whatever, you're going to need the APIs. In your question you just said you wanted to add new content using another mod's items, in which case would not require the API to make a tin pickaxe. Hopefully that makes sense.

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Well, if you are making the items usable by these other mods, via fuel or pipe connections or EU users or whatever, you're going to need the APIs. In your question you just said you wanted to add new content using another mod's items, in which case would not require the API to make a tin pickaxe. Hopefully that makes sense.

Okay, thanks.

But where do I put this line? Because in Preinit it gives me errors, or should I make the modid a string?

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The modID needs to be a String that represents the mod you are checking for. When you made your @Mod, you gave it modid = "someID". All @Mods have this, so you need to know what the ID of the mod is. You can check that mod's mcmod.info, and it should give it to you. For example, if you wanted to check and see if my mod Plunder Rummage was installed, you'd do this:

 

if(Loader.isModLoader("PR"))
{
     //do stuff
}

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The modID needs to be a String that represents the mod you are checking for. When you made your @Mod, you gave it modid = "someID". All @Mods have this, so you need to know what the ID of the mod is. You can check that mod's mcmod.info, and it should give it to you. For example, if you wanted to check and see if my mod Plunder Rummage was installed, you'd do this:

 

if(Loader.isModLoader("PR"))
{
     //do stuff
}

okay thanks :)

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Okay, so I tried that (with two of my own mods to test) and I got an error when trying to start minecraft with both installed at the same time.

There are no ID conflicts

 

Crash log:

 

---- Minecraft Crash Report ----

// Why did you do that?

 

Time: 19-7-13 21:18

Description: Initializing game

 

java.lang.NullPointerException

at net.minecraft.item.ItemStack.<init>(ItemStack.java:76)

at assets.ncombiners.common.Mainclass.PreInit(Mainclass.java:120)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:193)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:173)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:104)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)

at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:172)

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:470)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)

at net.minecraft.client.main.Main.main(SourceFile:101)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)

at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

 

 

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

 

-- Head --

Stacktrace:

at net.minecraft.item.ItemStack.<init>(ItemStack.java:76)

at assets.ncombiners.common.Mainclass.PreInit(Mainclass.java:120)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:193)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:173)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:104)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)

at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:172)

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:470)

 

-- Initialization --

Details:

Stacktrace:

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)

at net.minecraft.client.main.Main.main(SourceFile:101)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)

at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

 

-- System Details --

Details:

Minecraft Version: 1.6.2

Operating System: Windows 8 (amd64) version 6.2

Java Version: 1.7.0_21, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 1863476128 bytes (1777 MB) / 2058027008 bytes (1962 MB) up to 2058027008 bytes (1962 MB)

JVM Flags: 2 total; -Xmx2048M -Xms2048M

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Suspicious classes: FML and Forge are installed

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v8.04 FML v6.2.19.789 Minecraft Forge 9.10.0.789 5 mods loaded, 5 mods active

mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized

FML{6.2.19.789} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized

Forge{9.10.0.789} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized

amethysttools{1.0} [amethyst tools] (AmethystTools[1.6.2].zip) Unloaded->Constructed->Pre-initialized

ncombiners{dev} [Nieue's Combiners] (Ncombiners_dev.zip) Unloaded->Constructed->Errored

Launched Version: 1.6.2-Forge9.10.0.789

LWJGL: 2.9.0

OpenGL: Intel® HD Graphics 4000 GL version 4.0.0 - Build 9.17.10.2849, Intel

Is Modded: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Pack: 1.5.2 faithful 2.0.zip

Current Language: English (US)

Profiler Position: N/A (disabled)

Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

 

Where I put the line you gave me, the mod id is correct

@PreInit
public void PreInit(FMLPreInitializationEvent event)
{
	if(Loader.isModLoaded("amethysttools"))
	{
		ItemStack ame = new ItemStack(Amethyst);
		ItemStack red = new ItemStack(Item.redstone);

		GameRegistry.addRecipe(new ItemStack (AmethystBullet, 4), "  r", "aar", "  r",
				'a', ame, 'r', red);    
	}	

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hmm, i also got a question, not that everything has to be done in the pre-init, is there a way to change the load order of mods? in this case cant he simply change his itemstack creation to the init phase ?

If the job HAS to be done during the preinit, like a item that is based off another item, what can he do to make sure that the other mod is loaded before his ?

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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heres what happening

 

1 your mod loads

2 amethyst mod loads

 

because your mod is the first to load you get obvious problem of "well thsi doesnt exists"

 

what you WOULD like to happen is that

 

1 amethyst mod load

2 your mod loads

 

but afaik theres no way to set the mod load order

 

what you could try is move all that code in the init() phase or even postinit() this way its possible that amethyst mod will be loaded when you get there and that the item Amethyst will exists

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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Dependencies are:

@Mod(modid = "modid" name = "modname", version = "v0.123", dependencies = "required-after:IC2")

That'll require any version of IC2 to run and it'll always run after the dependency's loaded.

 

EDIT: And for 'specific' version:

dependencies = "required-after:IC2@[1.1.7,)")

Would require the minimum version of IC2 to be 1.1.7

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Dependencies are:

@Mod(modid = "modid" name = "modname", version = "v0.123", dependencies = "required-after:IC2")

That'll require any version of IC2 to run and it'll always run after the dependency's loaded.

 

EDIT: And for 'specific' version:

dependencies = "required-after:IC2@[1.1.7,)")

Would require the minimum version of IC2 to be 1.1.7

But then it will become an addon, so it would require IC2 to work at all, wouldn't it?

I don't want it to do that

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Dependencies are:

@Mod(modid = "modid" name = "modname", version = "v0.123", dependencies = "required-after:IC2")

That'll require any version of IC2 to run and it'll always run after the dependency's loaded.

 

EDIT: And for 'specific' version:

dependencies = "required-after:IC2@[1.1.7,)")

Would require the minimum version of IC2 to be 1.1.7

But then it will become an addon, so it would require IC2 to work at all, wouldn't it?

I don't want it to do that

 

Yeah, that's a hard dependency, as Chibill said just use 'after' rather than 'required-after' for a soft depend.

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Dependencies are:

@Mod(modid = "modid" name = "modname", version = "v0.123", dependencies = "required-after:IC2")

That'll require any version of IC2 to run and it'll always run after the dependency's loaded.

 

EDIT: And for 'specific' version:

dependencies = "required-after:IC2@[1.1.7,)")

Would require the minimum version of IC2 to be 1.1.7

But then it will become an addon, so it would require IC2 to work at all, wouldn't it?

I don't want it to do that

 

Yeah, that's a hard dependency, as Chibill said just use 'after' rather than 'required-after' for a soft depend.

So, if I want to load a new item when that other mod is loaded as well, do I just put:

@Mod(modid = "modid" name = "modname", version = "v0.123", dependencies = "required-after:IC2")

public static Item TestItem;

@PreInit
public void PreInit(FMLPreInitializationEvent event)
{
	if(Loader.isModLoaded("IC2"))
	{
	TestItem= new TestItem(5013).setUnlocalizedName("testitem");

		ItemStack test = new ItemStack(TestItem);
		ItemStack red = new ItemStack(Item.redstone);

		GameRegistry.addRecipe(new ItemStack (TestItem 4), "  r", "aar", "  r",
				'a', test, 'r', red);    
	}	

?

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